23 April 2017 Light-induced Au surface modification
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103237O (2017) https://doi.org/10.1117/12.2265315
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
We show that the surface properties of Au thin films on a glass prism, typical of the Krestchsmann setup for SPR generation, can be modified or tuned with optical exposure. The wetting properties of the film were investigated by measuring contact angles of water drops at room temperature T = 23 °C. These contact angle change with optical irradiation from below the film. This change corresponds to a maximum contact angle reduction of Δθc ~ 30° when a surface plasmon resonance (SPR) is excited. The variation in contact angle during drop evaporation is evaluated under different irradiation conditions.
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Chunyang Han, Chunyang Han, John Canning, John Canning, Kevin Cook, Kevin Cook, Md. Arafat Hossain, Md. Arafat Hossain, } "Light-induced Au surface modification", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103237O (23 April 2017); doi: 10.1117/12.2265315; https://doi.org/10.1117/12.2265315
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